2. Double tap
If you hit the PS button twice in a row, many apps will take you back to the last window you had open. This lets you easily switch back and forth, should you need you, without having to interact with the PS4 menus at all.
1. Easy on
Head over to Settings -> System -> Enable HDMI Device Sync to take advantage of a useful HDMI feature that will automatically turn on your TV when you power on your PS4. No need to get up, or find the remote, all you need is your controller.